What system should I use on my rephased motor
Mikes XS now has in stock Pamco ignitions for both 277° and 270° rephased motors as well as stock ignitions at prices anyone can afford.
Ignition Install Guide
By C Bath Dec 2007
This paper describes the installation
and issues I had when installing a Newtronic (Yam6) pointless ignition kit into
my XS-650 1978 special. I took a few photos’ that will demonstrate some of the
points I will discuss. Hopefully this will be of some use to our members in the
XS-650 club thinking of fitting such a system.
Firstly I would recommend fitting a
pointless ignition system to your bike, once they are fitted the bike will start
and run much smoother than with the older points and condenser system. Secondly
you never have to worry about setting the timing again, also with less moving
parts this has to be a better system.
Although fitting this unit was a bit
of a task, it proved to be worth while doing. If anyone needs more information
please e-mail me.
Reshaped Base Plate and Rotor
Wiring changed to make the bike run from supplied wiring diagram
which was wrong.
Photos 3&4 Electronic unit mounting under the rear position of the seat.
Electronik Sachse in Germany now make an ignition system for the standard XS650 but I emailed them and they are willing to make one for the 90° rephased motor. Click on the picture to check out their website. The price is estimated to be around AU$500.
Ignition System From Mark Whitebook at PROBE Engineering
There are now four distinct models available from PROBE engineering and information on them can be viewed on their new website at http://probe-engineering-inc.myshopify.com/
DX-65G XS 65L XS-83L XS-90L
1/ DX-65G is a dual fire ignition for a stock 360° motor
(wasted spark/single twin output coil) which is factory set to 7500 rpm.
2/ XS-65L is a single fire ignition for a stock 360° motor (two coils) with user programmable rev limiter adjustable in 250 RPM steps.
3/ XS-83L is a single fire rephased ignition system for an 83° rephased motor (two coils) with user adjustable rev limiter.
4/ XS-90L is a single fire rephased ignition system for a 90° rephased motor (two coils) with a user adjustable rev limiter.
Dave Rayner's radical belt driven OHC posed a problem because he wanted to use the Boyer system as he could not keep the mechanical advance/retard mechanism, nor could he put one on each end of the cam for the rephased motor as an alternative. So he came up with the stacked Boyer ignition system pictured below. An expensive but workable solution and quite ingenious don't you think? Looks similar to the ARD magneto that was once available for the XS650 and nicely balances the belt driven OHC on the other side.
There is a new ignition system that has come onto the scene fairly recently called the Pamco which is by far the cheapest ignition system of them all. They are available through Mikes XS in several configurations, Standard timing, 277° rephase and also 270° rephase. Care should be taken as I'm told they are susceptible to failure if they become disconnected from the spark plugs whilst running. Apart from that they work great.
January 21, 2015